The best way to understand where to define a configuration option is by looking
at the provided sample configuration files. The configuration files contain most
of the default configurations that are available for the Beat. To change a setting,
simply uncomment the line and change the values.

You can test your configuration file to verify that the structure is valid.
Simply change to the directory where the binary is installed, and run
the Beat in the foreground with the -configtest flag specified. For example:

If you use a leading zero (for example, 09) in a numeric field without
wrapping the value in single quotation marks, the value may be interpreted
incorrectly by the YAML parser. If the value is a valid octal, it’s converted
to an integer. If not, it’s converted to a float.

To prevent unwanted type conversions, avoid using leading zeros in field values,
or wrap the values in single quotation marks.